/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test_union.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 16:12:31,903 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 16:12:31,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 16:12:31,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-21 16:12:32,072 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-21 16:12:32,123 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 16:12:32,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 16:12:32,127 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-21 16:12:32,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-21 16:12:32,127 INFO L138 SettingsManager]: * Use SBE=true [2021-02-21 16:12:32,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 16:12:32,128 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 16:12:32,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 16:12:32,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 16:12:32,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 16:12:32,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 16:12:32,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 16:12:32,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 16:12:32,131 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 16:12:32,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 16:12:32,131 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 16:12:32,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 16:12:32,132 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 16:12:32,132 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-21 16:12:32,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 16:12:32,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 16:12:32,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 16:12:32,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-21 16:12:32,133 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-21 16:12:32,133 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-21 16:12:32,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-21 16:12:32,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 16:12:32,134 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-21 16:12:32,134 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 16:12:32,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 16:12:32,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 16:12:32,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 16:12:32,600 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 16:12:32,600 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 16:12:32,601 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_union.c_1.i [2021-02-21 16:12:32,692 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e91ee551/77e117b5f9724c3a82b97b7ecce357d8/FLAGa7f61ff87 [2021-02-21 16:12:33,319 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 16:12:33,319 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_union.c_1.i [2021-02-21 16:12:33,327 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e91ee551/77e117b5f9724c3a82b97b7ecce357d8/FLAGa7f61ff87 [2021-02-21 16:12:33,681 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e91ee551/77e117b5f9724c3a82b97b7ecce357d8 [2021-02-21 16:12:33,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 16:12:33,694 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 16:12:33,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 16:12:33,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 16:12:33,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 16:12:33,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:12:33" (1/1) ... [2021-02-21 16:12:33,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@623cee6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:12:33, skipping insertion in model container [2021-02-21 16:12:33,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:12:33" (1/1) ... [2021-02-21 16:12:33,719 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 16:12:33,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 16:12:33,881 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_union.c_1.i[296,309] [2021-02-21 16:12:33,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:12:33,906 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 16:12:33,922 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_union.c_1.i[296,309] [2021-02-21 16:12:33,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:12:33,943 INFO L208 MainTranslator]: Completed translation [2021-02-21 16:12:33,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:12:33 WrapperNode [2021-02-21 16:12:33,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 16:12:33,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 16:12:33,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 16:12:33,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 16:12:33,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:12:33" (1/1) ... [2021-02-21 16:12:33,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:12:33" (1/1) ... [2021-02-21 16:12:33,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:12:33" (1/1) ... [2021-02-21 16:12:33,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:12:33" (1/1) ... [2021-02-21 16:12:33,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:12:33" (1/1) ... [2021-02-21 16:12:33,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:12:33" (1/1) ... [2021-02-21 16:12:33,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:12:33" (1/1) ... [2021-02-21 16:12:33,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 16:12:33,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 16:12:33,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 16:12:33,983 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 16:12:33,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:12:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 16:12:34,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 16:12:34,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 16:12:34,095 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 16:12:34,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2021-02-21 16:12:34,096 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 16:12:34,096 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 16:12:34,096 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 16:12:34,096 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 16:12:34,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 16:12:34,097 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2021-02-21 16:12:34,097 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 16:12:34,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 16:12:34,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 16:12:34,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 16:12:34,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 16:12:34,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 16:12:34,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 16:12:34,419 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 16:12:34,420 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-21 16:12:34,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:12:34 BoogieIcfgContainer [2021-02-21 16:12:34,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 16:12:34,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 16:12:34,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 16:12:34,445 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 16:12:34,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 04:12:33" (1/3) ... [2021-02-21 16:12:34,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c903a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:12:34, skipping insertion in model container [2021-02-21 16:12:34,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:12:33" (2/3) ... [2021-02-21 16:12:34,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c903a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:12:34, skipping insertion in model container [2021-02-21 16:12:34,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:12:34" (3/3) ... [2021-02-21 16:12:34,452 INFO L111 eAbstractionObserver]: Analyzing ICFG test_union.c_1.i [2021-02-21 16:12:34,477 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-21 16:12:34,489 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 16:12:34,542 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 16:12:34,585 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 16:12:34,586 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 16:12:34,586 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-21 16:12:34,586 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 16:12:34,586 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 16:12:34,586 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 16:12:34,587 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 16:12:34,587 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 16:12:34,605 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2021-02-21 16:12:34,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-02-21 16:12:34,610 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:12:34,611 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:12:34,612 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:12:34,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:12:34,619 INFO L82 PathProgramCache]: Analyzing trace with hash 489142726, now seen corresponding path program 1 times [2021-02-21 16:12:34,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:12:34,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134299460] [2021-02-21 16:12:34,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:12:34,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:12:34,823 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:12:34,824 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:12:34,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:12:34,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:12:34,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:12:34,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:12:34,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:12:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:12:34,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:12:34,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:12:34,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:12:34,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134299460] [2021-02-21 16:12:34,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:12:34,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 16:12:34,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537763499] [2021-02-21 16:12:34,959 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 16:12:34,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:12:34,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 16:12:34,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 16:12:34,980 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 4 states. [2021-02-21 16:12:35,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:12:35,022 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2021-02-21 16:12:35,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-21 16:12:35,024 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2021-02-21 16:12:35,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:12:35,031 INFO L225 Difference]: With dead ends: 22 [2021-02-21 16:12:35,031 INFO L226 Difference]: Without dead ends: 0 [2021-02-21 16:12:35,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 16:12:35,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-21 16:12:35,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-21 16:12:35,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-21 16:12:35,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-21 16:12:35,062 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-02-21 16:12:35,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:12:35,062 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-21 16:12:35,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 16:12:35,063 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-21 16:12:35,063 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-21 16:12:35,063 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 16:12:35,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-21 16:12:35,145 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-21 16:12:35,146 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-21 16:12:35,146 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-21 16:12:35,146 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-02-21 16:12:35,146 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-21 16:12:35,147 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-02-21 16:12:35,147 INFO L189 CegarLoopUtils]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2021-02-21 16:12:35,147 INFO L189 CegarLoopUtils]: For program point __blast_assertEXIT(lines 6 9) no Hoare annotation was computed. [2021-02-21 16:12:35,147 INFO L189 CegarLoopUtils]: For program point __blast_assertFINAL(lines 6 9) no Hoare annotation was computed. [2021-02-21 16:12:35,147 INFO L192 CegarLoopUtils]: At program point __blast_assertENTRY(lines 6 9) the Hoare annotation is: true [2021-02-21 16:12:35,147 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-02-21 16:12:35,148 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-21 16:12:35,148 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-21 16:12:35,148 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-02-21 16:12:35,148 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 25 33) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-02-21 16:12:35,148 INFO L189 CegarLoopUtils]: For program point L29(line 29) no Hoare annotation was computed. [2021-02-21 16:12:35,148 INFO L189 CegarLoopUtils]: For program point mainFINAL(lines 25 33) no Hoare annotation was computed. [2021-02-21 16:12:35,148 INFO L185 CegarLoopUtils]: At program point L29-2(line 29) the Hoare annotation is: false [2021-02-21 16:12:35,149 INFO L189 CegarLoopUtils]: For program point L29-3(line 29) no Hoare annotation was computed. [2021-02-21 16:12:35,149 INFO L189 CegarLoopUtils]: For program point mainEXIT(lines 25 33) no Hoare annotation was computed. [2021-02-21 16:12:35,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 04:12:35 BoogieIcfgContainer [2021-02-21 16:12:35,155 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 16:12:35,157 INFO L168 Benchmark]: Toolchain (without parser) took 1471.02 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 99.4 MB in the end (delta: 26.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 8.0 GB. [2021-02-21 16:12:35,158 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory was 123.4 MB in the beginning and 123.3 MB in the end (delta: 80.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 16:12:35,159 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.15 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 115.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-21 16:12:35,160 INFO L168 Benchmark]: Boogie Preprocessor took 36.17 ms. Allocated memory is still 151.0 MB. Free memory was 115.9 MB in the beginning and 114.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-21 16:12:35,161 INFO L168 Benchmark]: RCFGBuilder took 445.16 ms. Allocated memory is still 151.0 MB. Free memory was 114.5 MB in the beginning and 102.7 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-02-21 16:12:35,162 INFO L168 Benchmark]: TraceAbstraction took 721.68 ms. Allocated memory is still 151.0 MB. Free memory was 102.3 MB in the beginning and 99.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 1.7 MB. Max. memory is 8.0 GB. [2021-02-21 16:12:35,166 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory was 123.4 MB in the beginning and 123.3 MB in the end (delta: 80.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 246.15 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 115.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 36.17 ms. Allocated memory is still 151.0 MB. Free memory was 115.9 MB in the beginning and 114.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 445.16 ms. Allocated memory is still 151.0 MB. Free memory was 114.5 MB in the beginning and 102.7 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 721.68 ms. Allocated memory is still 151.0 MB. Free memory was 102.3 MB in the beginning and 99.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 1.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 1 SDslu, 11 SDs, 0 SdLazy, 10 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 42 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 320 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...